s 84 Assessments to be final and conclusive
84.—(1) Except as expressly provided in this Act, where no valid notice of appeal has been lodged within the time limited by this Part against an assessment, or where an assessment has been determined on appeal, the assessment as made or agreed to under section 76(6), or determined on appeal (as the case may be) is final and conclusive for the purposes of this Act.(2) This section does not prevent the Comptroller from making any assessment or additional assessment under section 74 which does not involve reopening any matter which has been determined on appeal. —(1) Except as expressly provided in this Act, where no valid notice of appeal has been lodged within the time limited by this Part against an assessment, or where an assessment has been determined on appeal, the assessment as made or agreed to under section 76(6), or determined on appeal (as the case may be) is final and conclusive for the purposes of this Act. (2) This section does not prevent the Comptroller from making any assessment or additional assessment under section 74 which does not involve reopening any matter which has been determined on appeal.